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Insider · CIK 0001983639

Marcelo Eduardo Martins

ceoofficerdirector

Files at CSANY (Cosan S.A.). First filing May 21, 2026, latest May 21, 2026.

Marcelo Eduardo Martins files SEC Form 4 as CEO and director at CSANY (Cosan S.A.). Since May 21, 2026, Marcelo Eduardo Martins has reported 1 open-market buy worth $24M and 0 open-market sells worth $0, the latest filed on May 21, 2026.

A track record needs three past buys with six months of prices behind them; Marcelo Eduardo Martins has 0, so none is measured yet.

The newest scored trade: bought $24M of CSANY on Apr 10, 2026, filed May 21, 2026, scored 64 (notable). In the last 12 months: 1 buy worth $24M and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 0
$24M bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CSANY: Cosan S.A.

CSANYOct 9, 2026 · close 4.30

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
64Notable
Cosan S.A.
$24M
4,040,614 shares
+266%+17% from low-28% from high

Transactions

Every row this insider has filed, 4 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Apr 10, 2026CSANY
Cosan S.A.
POpen-market purchase
COMMON STOCK (BVMF: CSAN3)
+1,599,086$7.05$11M3,120,178May 21, 2026
May 19, 2026CSANY
Cosan S.A.
POpen-market purchase
COMMON STOCK (BVMF: CSAN3)
+2,441,528$5.14$13M4,890,286May 21, 2026
Apr 10, 2026CSANY
Cosan S.A.
JOther
LONG TERM INCENTIVE (BVMF: CSAN3)
-1,552,511$7.05$11M4,794,842May 21, 2026
May 19, 2026CSANY
Cosan S.A.
JOther
LONG TERM INCENTIVE (BVMF: CSAN3)
-2,441,528$5.14$13M2,353,314May 21, 2026

Questions about Marcelo Eduardo Martins

Answered from the filings on this page, as of the latest one.

Is Marcelo Eduardo Martins buying or selling?

In the last 12 months Marcelo Eduardo Martins reported 1 open-market buy worth $24M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $24M of CSANY on Apr 10, 2026. Grants, option exercises and tax withholding are not counted.

How did Marcelo Eduardo Martins's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Marcelo Eduardo Martins has 0.

Where does Marcelo Eduardo Martins file Form 4?

Marcelo Eduardo Martins has filed Form 4 at CSANY (Cosan S.A.) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.